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Why it鈥檚 not when you do it, it鈥檚 how you do it.

Most female mammals schedule their sex life into just the couple of days of when they鈥檙e fertile. So why do humans (in theory, at least) do it whenever the mood strikes?

To find out, Dessa explores stinky t-shirt tests, and all sorts of things we鈥檇 better not mention here. Parental discretion is strongly advised.

Image: Metronome with ticking heart (Credit: Getty Images)

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23 minutes

Last on

Mon 22 Nov 2021 03:06GMT
91热爆 World Service

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  • Sat 20 Nov 2021 19:06GMT
    91热爆 World Service East and Southern Africa & West and Central Africa only
  • Sun 21 Nov 2021 10:06GMT
    91热爆 World Service
  • Sun 21 Nov 2021 23:06GMT
    91热爆 World Service except East and Southern Africa & West and Central Africa
  • Mon 22 Nov 2021 03:06GMT
    91热爆 World Service